BibTeX:
@incollection{Various,
  author = {Various},
  title = {May Maxwell sees ‘Abdu’l-Baha for the first time},
  booktitle = {Baha'i Stories Blog},
  url = {https://bahaistories.blogspot.com/2012/11/may-maxwell-sees-abdul-baha-for-first.html},
}

APA:
Various. May Maxwell sees ‘Abdu’l-Baha for the first time. In *Baha'i Stories Blog*.

MLA:
Various. "May Maxwell sees ‘Abdu’l-Baha for the first time." *Baha'i Stories Blog*, n.d..

Chicago:
Various. "May Maxwell sees ‘Abdu’l-Baha for the first time." In *Baha'i Stories Blog*, n.d..